Обсуждение: information schema extra fields

I was just reading the PostgreSQL documentation about Information
Schemas.  Some of the tables have fields which are described as

"Applies to a feature not available in PostgreSQL"

What does that mean?

--
Ron Peterson
Network & Systems Manager
Mount Holyoke College
http://www.mtholyoke.edu/~rpeterso

On Sat, Dec 11, 2004 at 11:58:31AM +0900, Michael Glaesemann wrote:
> On Dec 9, 2004, at 12:46 PM, Ron Peterson wrote:
>
> >I was just reading the PostgreSQL documentation about Information
> >Schemas.  Some of the tables have fields which are described as
> >
> >"Applies to a feature not available in PostgreSQL"
>
> The information schema is a part of the SQL standard that allows access
> to information about the structure of the database schema. PostgreSQL
> strives to implement the SQL standard, but there are some features of
> the SQL standard that PostgreSQL has not yet implemented or has decided
> not to. You can check SQL conformance in the documentation.

Ah, thanks.  I didn't realize this was part of the SQL standard.

--
Ron Peterson
Network & Systems Manager
Mount Holyoke College
http://www.mtholyoke.edu/~rpeterso

On Dec 9, 2004, at 12:46 PM, Ron Peterson wrote:

> I was just reading the PostgreSQL documentation about Information
> Schemas.  Some of the tables have fields which are described as
>
> "Applies to a feature not available in PostgreSQL"

The information schema is a part of the SQL standard that allows access
to information about the structure of the database schema. PostgreSQL
strives to implement the SQL standard, but there are some features of
the SQL standard that PostgreSQL has not yet implemented or has decided
not to. You can check SQL conformance in the documentation.

Michael Glaesemann
grzm myrealbox com